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Old 10-14-2012, 12:49 AM   #1
civic_eater
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E38 v8 low rpm hesitation and rough idle

Changed my coils and plugs and no difference below 2000-1500rpm it seems to sputter after it is warmed up and has a rough idle pls help
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Old 10-14-2012, 11:22 AM   #2
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My first guess would be intake manifold gaskets. Try spraying some carb cleaner around them with the car running and see if the idle changes. Also check your intake boot and all vacuum lines for cracks/leaks.
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Old 10-15-2012, 10:57 AM   #3
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Pull Codes!

When I was having similar issues, it happened to be my CPS (Cam Position Sensor)
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Old 10-15-2012, 10:09 PM   #4
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Thanks guys
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Old 10-16-2012, 09:50 AM   #5
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So....

What was it?
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Old 10-22-2012, 03:45 PM   #6
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Duno yet will post
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Old 10-22-2012, 04:59 PM   #7
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Ive seen excessive cps gap and bad cps do that before.
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Old 11-01-2012, 10:38 PM   #8
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I read the codes and it is saying that it has a random misfire in cylinders 1-4
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Old 11-01-2012, 10:39 PM   #9
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Could that be caused by a bad cps?
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Old 11-02-2012, 09:37 AM   #10
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Bad CPS would come up as a bad CPS.

Random misfire could be caused from a few different things.

What were the codes that you got?
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